Skeletal System: , creates red blood cells, protects organs, provides structure for the body, works with the muscular system to move the body, ribcage, skull, and spine, Muscular System: , main function is to help the body move, over 600 of them in the body, muscles contract and relax, works with the skeletal system to move the body, tendons, biceps, and triceps, Respiratory System: takes in oxygen, exchanges the gases in the body, helps the body breathe, trachea, nose, lungs, removes carbon dioxide, ,

CS 5th grade Human Body Systems

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